heralds

If this first opera of the season is a herald (= sign) of what is to come, we can expect great things.

如果本季的这第一部歌剧是一个信号，那么我们可以期待接下来的剧目会非常精彩。

The president's speech heralds a new era in foreign policy.

总统的演说预示着一个外交政策新时代的开始。